CPL Filter: The Circular Polarizing filter lets you achieve vibrant
color saturation or eliminate glare and reflections from non-metallic
objects and glass surfaces and minimizing haze. This filter can be
automatically rotated when adjusting your lens to determine the amount of
reflection to be removed.

Limited Warranty (USA): This product carries a limited 25 year warranty
against manufacture defects. This warranty is valid only for Nikura
products. If this product fails to function within 25 years of purchase send
to: 5 Fernwood Avenue, Edison, NJ 08837.Any questions or comments please
write to us at the address above or email at cs@nikurausa.com